Application of M1approach to numerical simulation of radiative transfer in strong explosion fireball

Yan Kai; Tian Zhou; Guo Yong -hui; Dong Nan

doi:10.11883/1001-1455(2014)02-0241-06

Volume 34 Issue 2

May 2014

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Yan Kai, Tian Zhou, Guo Yong -hui, Dong Nan. Application of M1approach to numerical simulation of radiative transfer in strong explosion fireball[J]. Explosion And Shock Waves, 2014, 34(2): 241-246. doi: 10.11883/1001-1455(2014)02-0241-06

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Application of M1approach to numerical simulation of radiative transfer in strong explosion fireball

doi: 10.11883/1001-1455(2014)02-0241-06

Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Funds: Supported by the National Natural Science Foundation of China (91330205)

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Corresponding author: Yan Kai, yaankai@163.com
Received Date: 2012-08-28
Rev Recd Date: 2013-03-18
Publish Date: 2014-03-25

Abstract

Abstract

According to the equations for the P1, Minerbo and M1approach models, the variations of their Eddington factors with the anisotropy factors were derived as well as the maximum eigenvalues of the moment equations of the radiative transfer against the anisotropy factors, respectively.And the M1approach model was used to numerically simulate the firball radiatve transfer from a 1 -kt TNT equivalent explosion.The fireball and shock wave fronts were given and compared with those by the different approach models.Numerical experiments show that the radiation wave velocity by the M1 approach is faster than that by the P1approach, but slower than that by the Minerbo approach.In the stage of the shock wave expansion, the radiation wave velocities by these three approaches are consistent with each other.
- mechanics of explosion,
- M1approach model,
- radiative transfer,
- strong explosion fireball,
- Eddington factor

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References(17)

References

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